Hi,
we checked the slider you submitted as an example. The reason why the slider does not work unlike other sliders that are placed on the page is that the main home page slider has a different domain URL to the slide image itself.
So all other sliders have a path from your main domain:
while the home page slider src comes from:
https://www.vhscb.cz.uvirt106.active24.cz
Here are the paths for the homepage slider:
https://i.ibb.co/8gpnM39/Screen-Shot-2021-07-10-at-10-01-00-AM.png
And since browsers block the reading of images from another domain this is why the home slider is unable to load images due to the CORS policy.
https://i.ibb.co/Sdr0098/Screen-Shot-2021-07-10-at-10-01-35-AM.png
To solve the problem you need to change the src path for the homepage slider as you have for the other sliders on the page.
The most important thing is to see what mistakes appear in your backend, and we will find out as follows:
1. log in to your WordPress backend, if you are using a Chrome browser go to the three dots at the top right select More Tools -> Developer Tools and then click on the Console tab.
https://i.ibb.co/1MC1V6H/Screen-Shot-2021-02-10-at-11-44-36-AM.png
https://i.ibb.co/25Kf9qQ/Screen-Shot-2021-02-10-at-11-44-50-AM.png
Then send a name screenshot if you see a red error in the console.
So that we can see if it is possible to make some fix that would help you.
If unfortunately you can’t preview or edit the slide, you will have to start over.
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This reply was modified 3 years, 4 months ago by Codinga.
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This reply was modified 3 years, 4 months ago by Jan Dembowski.